When I was using the mod which was recommended to me by a YouTuber named @demonjoeTV when I joined a server, the blocks were switched up and looked weird. It seems like the blocks had switched up IDs.

Fabric version: 0.16.9-1.21.4
Minecraft version: 1.21.4

(I rewrote this because I accidentaly closed the bug)

I rewrote this because I accidentaly closed the bug

You can reopen issues btw.

This is a known bug. The mod needs to be installed on both the server and client to work, and will glitch out if the server doesn't have the mod.